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ADS821
  • ADS821

ADS821

ACTIVE

10-Bit, 40-MSPS Analog-to-Digital Converter (ADC)

Texas Instruments ADS821 Product Info

1 April 2026 3

Parameters

Sample rate (max) (Msps)

40

Resolution (Bits)

10

Number of input channels

1

Interface type

Parallel CMOS

Analog input BW (MHz)

65

Features

Low Power

Rating

Catalog

Peak-to-peak input voltage range (V)

2

Power consumption (typ) (mW)

390

Architecture

Pipeline

SNR (dB)

59

ENOB (Bits)

9.3

SFDR (dB)

70

Operating temperature range (°C)

-40 to 85

Input buffer

No

Package

SOIC (DW)-28-184.37 mm² 17.9 x 10.3

Features

  • NO MISSING CODES
  • INTERNAL REFERENCE
  • LOW POWER: 380mW
  • HIGH SNR: 58dB
  • INTERNAL TRACK-AND-HOLD
  • APPLICATIONS
    • VIDEO DIGITIZING
    • ULTRASOUND IMAGING
    • GAMMA CAMERAS
    • SET-TOP BOXES
    • CABLE MODEMS
    • CCD IMAGING
      • Color Copiers
      • Scanners
      • Camcorders
      • Security Cameras
      • Fax Machines
    • IF AND BASEBAND DIGITIZATION
    • TEST INSTRUMENTATION

All trademarks are the property of their respective owners.

  • NO MISSING CODES
  • INTERNAL REFERENCE
  • LOW POWER: 380mW
  • HIGH SNR: 58dB
  • INTERNAL TRACK-AND-HOLD
  • APPLICATIONS
    • VIDEO DIGITIZING
    • ULTRASOUND IMAGING
    • GAMMA CAMERAS
    • SET-TOP BOXES
    • CABLE MODEMS
    • CCD IMAGING
      • Color Copiers
      • Scanners
      • Camcorders
      • Security Cameras
      • Fax Machines
    • IF AND BASEBAND DIGITIZATION
    • TEST INSTRUMENTATION

All trademarks are the property of their respective owners.

Description

The ADS821 is a low-power, monolithic 10-bit, 40MHz Analog-to-Digital (A/D) converter utilizing a small geometry CMOS process. This complete converter includes a 10-bit quantizer with internal track-and-hold, reference, and a power down feature. It operates from a single +5V power supply and can be configured to accept either differential or single-ended input signals.

The ADS821 employs digital error correction to provide excellent Nyquist differential linearity performance for demanding imaging applications. Its low distortion, high SNR, and high oversampling capability give it the extra margin needed for telecommunications and video applications.

This high-performance converter is specified for ac and DC performance at a 40MHz sampling rate. The ADS821 is available in an SO-28 package.

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